US3217227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery charging equipment
Assignee: Individual
•
Filing: 1962-03-19
•
Granted: 1965-11-09
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Expires: 1982-03-19
Abstract
No abstract record available.
Inventors
- 👤 George W Sherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:21
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/70; Y; Y10; Y10S; Y10S320/00; Y10S320/18; Y10S320/21; Y10S320/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
BATTERY CHARGING EQUIPMENT COMPRISING A TRANSFORMER INCLUDING PRIMARY AND SECONDARY COILS, MEANS FOR CONNECTING THE PRIMARY COIL OF THE TRANSFORMER TO A SOURCE OF ALTERNATING ELECTRICAL ENERGY, A RECTIFIER, MEANS CONNECTING ONE END OF THE SECONDARY WINDING OF THE TRANSFORMER TO ONE TERMINAL OF THE RECTIFIER, A BUS BAR, MEANS FOR CONNECTING THE OTHER TERMINAL OF THE RECTIFIER TO THE BUS BAR, A PLURALITY OF SETS OF LIGHT BULB SOCKETS, MEANS CONNECTING THE BUS BAR TO ONE TERMINAL OF EACH OF THE LIGHG BULB SOCKETS IN EACH OF THE PLURALITY OF SETS OF LIGHT BULB SOCKETS, A SEPARATE TERMINAL STRIP ASSOCIATED WITH EACH OF THE PLURALITY OF SETS OF LIGHT BULB SOCKETS, MEANS FOR CONNECTING THE OTHER TERMINAL OF EACH OF THE LIGHT BULB SOCKETS IN A SET OF LIGHT BULB SOCKETS TO THE TERMINAL STRIP ASSOCIATED WITH THE PARTICULAR SET OF LIGHT BULB SOCKETS, A TRAY OF CONDUCTIVE MATERIAL, MEANS FOR SUPPORTING A PLURALITY OF BATTERIES ON SAID TRAY WITH ONE TERMINAL THEREOF IN CONTACT WITH ONE OF THE TERMINAL STRIPS AND WITH THE OTHER TERMINAL THEREOF IN CONTACT WITH THE TRAY AND MEANS CONNECTING THE TRAY TO THE OTHER END OF THE SECONDARY COIL OF THE TRANSFORMER.
Claim 2
Dependent Claim
199 words
BATTERY CHARGING EQUIPMENT COMPRISING A TRANSFORMER INCLUDING PRIMARY AND SECONDARY COILS, MEANS FOR CONNECTING THE PRIMARY COIL OF THE TRANSFORMER TO A SOURCE OF ALTERNATING ELECTRICAL ENERGY, A RECTIFIER, MEANS CONNECTING ONE END OF THE SECONDARY WINDING OF THE TRANSFORMER TO ONE TERMINAL OF THE RECTIFIER, A BUS BAR, MEANS FOR CONNECTING THE OTHER TERMINAL OF THE RECTIFIER TO THE BUS BAR, A PLURALITY OF SETS OF LIGHT BULB SOCKETS, MEANS CONNECTING THE BUS BAR TO ONE TERMINAL OF EACH OF THE LIGHG BULB SOCKETS IN EACH OF THE PLURALITY OF SETS OF LIGHT BULB SOCKETS, A SEPARATE TERMINAL STRIP ASSOCIATED WITH EACH OF THE PLURALITY OF SETS OF LIGHT BULB SOCKETS, MEANS FOR CONNECTING THE OTHER TERMINAL OF EACH OF THE LIGHT BULB SOCKETS IN A SET OF LIGHT BULB SOCKETS TO THE TERMINAL STRIP ASSOCIATED WITH THE PARTICULAR SET OF LIGHT BULB SOCKETS, A TRAY OF CONDUCTIVE MATERIAL, MEANS FOR SUPPORTING A PLURALITY OF BATTERIES ON SAID TRAY WITH ONE TERMINAL THEREOF IN CONTACT WITH ONE OF THE TERMINAL STRIPS AND WITH THE OTHER TERMINAL THEREOF IN CONTACT WITH THE TRAY AND MEANS CONNECTING THE TRAY TO THE OTHER END OF THE SECONDARY COIL OF THE TRANSFORMER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |